Improvement in well-tubes



N. PETERS, PHOTO-LITHOGRAPHER, WASHINGTON D C @uiten gieten atent @time Letters Patent No. 81,581, dated September l, 1868.'

IMPROVEMENT IN WELL-TUBES.

dige Signale referat lt it time intimi prima mit netting gaat nf the same.

'ro ALL WHOM 1T MAY CONCERN;

Be it known that I, DAVID BAKER, of Boston, in the county of Suffolk, and in the Stato of .hiussa chusetts, have invented new and useful Improvements in Well-Tubes; and do hereby declare that the following is a full, clear, and exact description thereof,.reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature ofmy invention consists in the construction of the point er screw at the end of the well-tubo to facilitate its passage down into the earth, and in providing the tube with a screen or 'strainer for the purpose of increasing the ilow of water through the same by'means of an open chamber, and by having the holes'or openings at the bottom ofthe tube.

y To enable others skilled in the art to malrc'and use my invention, lwill proceed to describe its construction and operation.

In the annexedd'rawings, forming part of this specification, E represents a well-tube provided with apoint or scrcwF, which is connectedwith the tube. by means.y of the coupling Gr. The pointer serew'F. is to be made of iron, steel, or other suitable material, and `so constructed that its sides a a are perpendicular when the'tnbe is inserted in the ground, and also parallel with each other, and forms a. spiral inclined plane, with perpendicular sides and curved or square shoulders.l I I The construction of the Apoint or screw F .with perpendicular sides facilitates its passage down into the earth, as it throws the earth off in right angles'from it, and not` down, thus leaving the point oi' the screw free to penetrate further with `comparative case as it is turned, and the screw will not be so readily clogged up or jammed with any hard substance that may be in the earth.' I Y The diameter of the upper end of the point or screw F`sl1ould be a triie larger than that of the coupling G, to which the point should be securely fastened by means oi a screw or in any other suitable and cilicient manner.

'.lhe coupling G should be large enough to extend beyond und form a guard for the strainer or screen H, which is put over the holes on the tube, and may rest on the-coupling or not, as maybe desired, and thereby protecting the screen H from being torn by` the rough earth on its passage down.

The strainer or screen H is made of wire'or any other suitable material, and its-edges aredove-tailed and soldered together, so that when it is downin the ground, and the water and earthy matter press on all sides, the strain on the screen cannot causeitto give er break. The diameter of the strain-er or screen H should be so much larger than the diameter of the tube E that the chamber or space formed between the screen and tube will hold about as much water as the lsaine length of the tube.: The strainer may be made of any height, -t0 extend above the holes z'z' on the tube, as may be desired, but there must always beenongh holes in the tube te allow as much waterto enter as will iill thebore of thegt'ube.- I `i i I When the well is to be sunk, 'the chamber or space betweentlie tube E and the strainer or screenH, as also the tube to the suine height as the strainer, is iilled with `line sfted sand or any other-.suitable material.A When tfhe tube has been sunk vto the depth desired, the sand in thetube is pumped out, the' sand in the'chamber will pass .through the holesiz'z' into the tube and alsol pumped out. The pressure of the water-onalbsides of the strainer will prevent it from bending, but hold it in itsproper shape andjpositiou. -V T hegwaterfnow enteringon all sides of the strainer H, and passing through the holes 't'iinto the'tube E, willvgive a. steady and increased flow of water. The strainer, when put on the tube, is fastened both at the top and bottom. .At the bottom it may be fastened either to the tube or.coupling,whiche,ver may be desired. A

The holes or openings 'z' on the tube should be at the bottom thereof, as by such an arrangement this part is always full of water when the strainer is of suitable length and properly immersed, thereby avoiding theY necessity of pumping air and foam, which is'always the'case when the water4 is allowed to get below tbc holes.

Having thus fully described :ny invention,ywhat I claim as new, and desire to secure by Letters Patent, is

1. A conical point, F, formediwith perpendicular sides, and with shoulders between, the apex being formed with one or more drill-edges, the sides a being elongated more or less, whereby the earthmay be forced at right. angles from said point in penetrating -the ground, all'substantially as shown and described.

2. The combination of the interior perforated tube A and the exterior screen H', when a chamber is formed between said tube and strainer, substantially as and for the purposes set for'th.

3. The arrangement o'f the point F in combination with the tube E and holes therein, strainer vor screen H, and the chamber or space formed between the strainer and tube, arranged and operating substantially as and 'for the purposes herein set forth.

In testimony that I claim the foregoing, I have hereunto setmy hand, this 25th day of pril, 1868.

i DAVID BAKER.

Witnesses:

LEOPOLD Evnnr, A. N. MARR. 

